Silence unused variable warning in release builds.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300006 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/AST/ExternalASTMerger.cpp b/lib/AST/ExternalASTMerger.cpp
index 1f1a9b1ec2eee801c978e40ce66b04bdfda769e1..2761eb4629b724fef1628fb739f9a3a3adef042c 100644 (file)
--- a/lib/AST/ExternalASTMerger.cpp
+++ b/lib/AST/ExternalASTMerger.cpp
@@ -177,6 +177,7 @@ void ExternalASTMerger::FindExternalLexicalDecls(
             Decl *ImportedDecl =
                 IP.Forward->Import(const_cast<Decl *>(SourceDecl));
             assert(ImportedDecl->getDeclContext() == DC);
+            (void)ImportedDecl;
           }
         }
       });